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GEOLOGICAL MODEL OF ARTESIAN UNDERLYING SANDY COLLECTOR IN THE CENTRAL PART OF THE MOST BASIN
Abstract
The presented paper describes artesian aquifer collector which is situated in the area of interest of the J. Sverma and Vrsany open pit mines. The area of interest is situated at the southern border of the central part of the Most Basin (previously North Bohemian Brown Coal Basin). The occurrence of severa l saturated collectors, which were created in this area in different geological peri ods (especially in the Upper Cretaceous and Miocene Period), is obstacle to the continuous extraction of coal from the beginning of the mining operations. The collector of underlying sands, which is located below the base of the coal seam, is the first. The se diments stratigraphically belong to the Upper Cretaceous and Miocene Period. Other collector s occurring in the area of interest are: bodies of interdeposit sands (situated between the coal benches) and accumulation of sands and gravels deposited in the overlying strata. The collector of underlying sands, which is the largest collector of the Most Basin, is causing the biggest problems to continuous mining operations of both mines. For this reason, various drainage measures were realized in the form of drainage boreholes or whole drainage barriers. The submitted paper describes the geological structure of the co llector of underlying sands and its origin and measures implemented to mitigate th e negative impacts of coal extraction.
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References6
Halir J. Review of the deposition of unde rlying sands and evaluation of the drainage state in the area of the southwestern barrier of J. Sverma mine, expert review, Brown Coal Research Institute j.s.c., The Czech Republic, 1998
Halir J. Evaluation of mining operations in Vrsany working district and Holesice working district in relation to the collector of underlying sands in the years 2010 - 2031, expert review, Brown Coal Research Institute j.s.c., The Czech Republic, 2001
Halir J. Monitoring and evaluation of trends in groundwater level in the collector of underlying sands in Holesice working district , expert review, Brown Coal Research Institute j.s.c., The Czech Republic, 2001
Halir J. Mathematical modeling of unde rlying sandy collector in Holesice working district, expert review, Brown Coal Research Institute j.s.c., The Czech Republic, 2004
Halir J. & Pletichova M. Hydrogeological monitoring of the Vrsany mine forefield, expert review, Brown Coal Research Institute j.s.c., The Czech Republic, 1998
Team of authors. A solution of ecological damages arising before the privatization of brown coal mining companies in the Us ti and Karlovy Vary Regions, expert review, Brown Coal Research Institute j.s.c., The Czech Republic, 2003
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